The degradation of o-Toluidine (OT), an omnipresent molecule in industrial effluents and elected as a toxic compound on EPA’s Chemical Contaminants List (CCL4), has been carried out using an advanced oxidation process. Specially designed glass reactors (n = 6) equipped with quartz inserts accommodating each a commercial 11 W UV-lamp were realized. The results showed significant degradation of OT upon exposure to UV however in the presence of persulfate (PS). The oxidation mechanism was attributed to sulfate and hydroxyl radicals. Several initial concentrations of OT were used so that to elaborate a kinetic law rate for OT oxidation. Results showed that OT undergoes pseudo-first order reaction and its transformation products are not seen to be recalcitrant since they disappeared along with OT as the treatment time is extended and [PS]<sub>0</sub> is increased. The reaction stoichiometric efficiency was optimized based on a minimum of [PS] used yielding the highest degradation extent.

Degradation of a toxic molecule in industrial effluents using UV/PS activated systems: Application to o-toluidine

253rd National Meeting (2017)

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